The National Testing Agency (NTA) has opened the provisional answer key challenge window for the NEET UG 2026 re-examination, allowing candidates to challenge any answer they believe is incorrect. The facility is available on the official NEET portal and will remain open until 11:50 PM on June 28, 2026.

The answer key relates to the NEET UG 2026 re-examination conducted on June 21, 2026. Candidates who appeared for the re-exam can review the provisional answer key, compare it with their recorded responses, and submit objections supported by valid academic references.
The answer key challenge process provides candidates with an opportunity to seek correction of any answer they believe has been incorrectly evaluated. According to the NTA, candidates must submit documentary evidence from NCERT textbooks or other recognized standard reference books while challenging any question.
Only challenges supported by valid evidence will be considered for review by subject experts.
Candidates must submit their objections before 11:50 PM on June 28, 2026. No challenges will be accepted after the deadline under any circumstances.
After the challenge window closes, expert committees appointed by the NTA will examine all objections. If a challenge is found to be valid, the provisional answer key will be revised accordingly before the declaration of the final answer key and result.
Candidates are required to pay a non-refundable processing fee of ₹200 per question while submitting objections.
However, the NTA has clarified that the fee will be refunded only if the challenge is accepted after review by the panel of subject experts.
Candidates can challenge one or multiple questions by paying the applicable fee for each question separately.
While submitting a challenge, candidates should upload supporting documents such as:
Challenges submitted without documentary proof may not be considered.
Candidates can follow these steps:
1. Visit the official NEET UG portal.
2. Log in using the application number and password.
3. Open the "Challenge Provisional Answer Key" link.
4. Enter the Question Paper Series Code printed on the cover page of the test booklet.
4. Select the question(s) to be challenged.
5. Upload supporting documents in the prescribed format.
6. Pay the processing fee of ₹200 per question through the online payment gateway.
7. Review the details and submit the challenge.
8. Download and save the confirmation page for future reference.
Once the objection window closes, the NTA will forward all submitted challenges to subject experts for detailed evaluation.
Based on the experts' recommendations:
The answer key challenge mechanism ensures transparency and fairness in the evaluation process. It gives candidates an opportunity to point out any possible discrepancies before the final results are prepared.
Candidates are advised to carefully compare the provisional answer key with their responses and submit challenges only when supported by authentic academic sources.
Conclusion
The commencement of the NEET UG Re-exam 2026 provisional answer key challenge process provides candidates with an important opportunity to seek corrections before the final results are declared. Aspirants should review the provisional answer key carefully and submit objections, along with valid documentary evidence, before 11:50 PM on June 28, 2026. Since the final answer key will determine the re-exam results, candidates should complete the challenge process well before the deadline to avoid last-minute technical issues.